Q: What are the prime factors of the number 621,162,564?

 A: 2, 3, 11, 23, 204599

Why are those the prime factors of the number 621,162,564?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 621,162,564

621,162,564
Factor Arrows
2310,581,282
Factor Arrows
2155,290,641
Factor Arrows
351,763,547
Factor Arrows
114,705,777
Factor Arrows
23204,599

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 11, 23, 204599

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 11 x 23 x 204,599 = 621,162,564

This can also be written as 22 x 31 x 111 x 231 x 204,5991 = 621,162,564

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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